Catholic teaching holds that gay people must be treated with dignity and respect but that homosexual acts are “intrinsically disordered.” A 2003 document from the Vatican’s doctrine office stated the church’s respect for gay people “cannot lead in any way to approval of homosexual behavior or to legal recognition of homosexual unions.”
Doing so, the Vatican reasoned, would not only condone “deviant behavior,” but create an equivalence to marriage, which the church holds is an indissoluble union between man and woman.
That document was signed by the then-prefect of the office, Cardinal Joseph Ratzinger, the future Pope Benedict XVI and Francis’ predecessor.